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Rare-earth complex solution and modified solar cell preparation methods

A technology of solar cells and complexes, which is applied in the field of solar cells and can solve problems such as low efficiency of solar cells

Active Publication Date: 2018-04-20
QINGDAO UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0006] The purpose of the present invention is to improve the shortcoming of low efficiency of solar cells, by spin-coating the rare earth complex solution with fluorescent properties on the PET substrate of solar cells, and utilizing the fluorescent properties of rare earth complexes to increase the light absorption intensity of solar cells , improve the photoelectric conversion efficiency of solar cells

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  • Rare-earth complex solution and modified solar cell preparation methods

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preparation example Construction

[0015] The preparation method of the rare earth complex solution comprises: using two organic conjugated small molecules as the first ligand and the second ligand respectively, and the first ligand and the second ligand are mixed and reacted with the rare earth chloride solution , to obtain a rare earth complex solution.

[0016] The molar ratio of the rare earth chloride, the first ligand, and the second ligand is 1:3:1, which is the optimal synthesis ratio, and the fluorescence intensity of the obtained rare earth complex is the best.

[0017] The rare earth chloride solution is one of europium chloride solution, terbium chloride solution, thulium chloride solution and gadolinium chloride solution, preferably europium chloride solution, and europium chloride has excellent luminescence performance, which is reflected as red Light.

[0018] The first ligand is 2-thienoyl trifluoroacetone, the second ligand is 1-10 phenanthroline, the first ligand and the second ligand are typ...

Embodiment 1

[0040] The preparation method of the rare earth complex solution of the present embodiment comprises the following steps:

[0041] 2-thienoyltrifluoroacetone is used as the first ligand, 1-10 phenanthroline is used as the second ligand, the first ligand and the second ligand are mixed with europium chloride solution, europium chloride, 2- The molar ratio of thienoyl trifluoroacetone and 1-10 phenanthroline is 1:3:1, react at room temperature for 2 hours to obtain a rare earth complex solution;

[0042] Among them, the preparation process of europium chloride solution: a certain amount of europium oxide and excess hydrogen chloride aqueous solution are reacted for a period of time under the condition of stirring to make it fully dissolved, and the solution is moved to a 70°C oil bath to evaporate the excess solvent until the solvent Disappeared, the remaining reactants were crystals, dried to obtain EuCl 3 ∙H 2 0, then the crystal is dissolved with an appropriate amount of et...

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Abstract

The invention discloses rare-earth complex solution and modified solar cell preparation methods, and the rare-earth complex solution preparation method comprises the steps: taking two types of organicconjugate micromolecules as a first ligand and a second ligand, mixing the first and second ligands with rare-earth chloride solution for reaction, and obtaining the rare-earth complex solution. Themodified solar cell preparation method comprises the steps: carrying out the spin coating of the rare-earth complex solution on a PET substrate of a solar cell, and preparing the modified solar cell.The fluorescence characteristics of the rare-earth complex can improve the light absorption intensity of the solar cell, and improves the photoelectric conversion efficiency of the solar cell.

Description

technical field [0001] The invention relates to the technical field of solar cells, in particular to a preparation method of a rare earth complex solution and a modified solar cell. Background technique [0002] As a material with excellent and unique optical, electrical and magnetic properties, rare earth materials have very important application value. Its unique electronic layer structure is unmatched by general materials. The advantages of high fluorescence intensity and narrow luminescence range make rare earths have incomparable natural advantages in the field of luminescence. As a result, rare earth materials are widely used in the three major fields of lighting, display and detection. With the maturity of rare earth material technology, the scale of industrial production and consumption related to rare earth is growing. The research on the function and application technology of rare earth compounds is an important topic in the development of materials in the 21st c...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01L31/18
CPCH01L31/18Y02P70/50
Inventor 王薇李磊唐建国王瑶黄林军沈文飞刘继宪焦吉庆王彦欣王久兴姜倩倩杜中林王世超李付霞李国鹏
Owner QINGDAO UNIV
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